GERMAN WW2 PRISONERS TAG from CONCENTRATION CAMP
Tag is crudely made out of tin and are Waffenamt marked on reverse. In front the tag has prisoner number and letter 'H'. Tag is also marked '37 EU'.
This kind of tags were used by German regime in concentration camps during WW2 for identified international prisoners.'H' means Holland. Green triangle was used for convicts and criminals (often working as kapos).
HISTORY of SALES: A few years ago regular prisoners tag from concentration camp was sold on Live Auctioneer for $300 - please see the screenshot.
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WIKIPEDIA: Nazi concentration camp badges, primarily triangles, were part of the system of identification in Nazi camps. They were used in the concentration camps in the Nazi-occupied countries to identify the reason the prisoners had been placed there. The triangles were made of fabric and were sewn on jackets and trousers of the prisoners. These mandatory badges of shame had specific meanings indicated by their colour and shape. Such emblems helped guards assign tasks to the detainees. For example, a guard at a glance could see if someone were a convicted criminal (green patch) and thus likely of a tough temperament suitable for kapo duty.
Someone with an escape suspect mark usually would not be assigned to work squads operating outside the camp fence. Someone wearing an F could be called upon to help translate guards ' spoken instructions to a trainload of new arrivals from France. Some historical monuments quote the badge-imagery, with the use of a triangle being a sort of visual shorthand to symbolize all camp victims.
The modern-day use of a pink triangle emblem to symbolize gay rights is a response to the camp identification patches. The system of badges varied between the camps and in the later stages of World War II the use of badges dwindled in some camps and became increasingly accidental in others. The following description is based on the badge coding system used before and during the early stages of the war in the Dachau concentration camp, which had one of the more elaborate coding systems. Shape was chosen by analogy with the common triangular road hazard signs in Germany that denote warnings to motorists. Here, a triangle is called inverted because its base is up while one of its angles points down.

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